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I have an audio device that works with battery, but this little friend here stopped working,in fact it still works, but apparently it is sending a lot less energy than it should, nor being able to turn on the LED that indicates it is charging. Connector to charger

Then I open this and found that battery Batery

That goes here on the chip

enter image description here

I don't have much knowledge about electronics other than the basics, I can identify some things on the device, but not enough, someone could tell me how to get me to send power to the device without needing the battery or the connector to charge

  • If you'd like us to help you find the power cord/plug for that TRC-219 , just let us know the brand or manufacturer. – K7AAY Apr 20 at 20:18
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I was looking for ways to control the voltage of an outlet, since we are in quarantine, I would not find resistors and transistors. But I just remembered that USB cables already do this job for me. As I have several unused at home, I stripped one, stuck the negative and positive of those that were connected to the battery and it is working perfectly. I was even able to use one of the screw holes to make the wire exit. enter image description here

Ah, it seems that I touched some circuit of the led monitor, now it is not correctly positioned, but a minimal damage for having it working again

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